Let's do a hand simulation of several scheduling algorithms.
First, let's do round robin. The time quantum is 100 msec. All time units in the exercise are in msec (not that it matters).
Here is the data.
Process 1000 starts running at time t (the system had previously been in the idle state).
At time t+40 process 1001 starts. What Process should run?
Idle 1000 1001